US2017326485A1PendingUtilityA1

Protective clothing

Assignee: TORAY INDUSTRIESPriority: Dec 26, 2014Filed: Dec 22, 2015Published: Nov 16, 2017
Est. expiryDec 26, 2034(~8.4 yrs left)· nominal 20-yr term from priority
B03C 3/30D06M 17/04B32B 2437/00B32B 2307/204A62B 17/00D04H 3/14D06M 17/06B32B 5/022B32B 2262/0253B32B 5/26B32B 2307/724B32B 2250/20D06M 17/00B32B 7/12A62B 17/006A41D 2600/20B32B 5/08B32B 2571/00A41D 31/0016B01D 39/1623A41D 31/04
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Claims

Abstract

The present invention provides a protective clothing having high dust proof property which prevents powder dust from entering into the clothing and having high air permeability for comfortable work, in which the temperature does not rise easily even in summer. A dust-proof clothing using the following dust-proof material, wherein i) the dust-proof material has a fiber layer and an electret nonwoven fabric layer, and a total number of the fiber layer and the electret nonwoven fabric layer is 2 or more; and ii) in the dust-proof material, the fiber layer and the electret nonwoven fabric layer, which are adjacent to each other, are adhered on a region having an area ratio of 5% or more and 10% or less.

Claims

exact text as granted — not AI-modified
1 . A dust-proof clothing using the following dust-proof material, wherein:
 i) the dust-proof material has a fiber layer and an electret nonwoven fabric layer, and a total number of the fiber layer and the electret nonwoven fabric layer is 2 or more; and   ii) in the dust-proof material, the fiber layer and the electret nonwoven fabric layer, which are adjacent to each other, are adhered in a region having an area ratio of 5% or more and 10% or less.   
     
     
         2 . The protective clothing according to  claim 1 , wherein the electret nonwoven fabric layer of the dust-proof material is a meltblown nonwoven fabric or a spunbonded nonwoven fabric. 
     
     
         3 . The protective clothing according to  claim 1  or  2 , wherein the dust-proof material has an air permeability of 30 cm 3 /cm 2 /s or more. 
     
     
         4 . The protective clothing according to any of  claims 1  to  3 , wherein the electret nonwoven fabric layer is made of a meltblown nonwoven fabric that contains the following amount of additives:
 iii) containing 0.5 to 5% by mass of a hindered amine additive or 0.5 to 5% by mass of a triazine additive; or 
 iv) containing a total of 0.5 to 5% by mass of a hindered amine additive and a triazine additive, both being essential. 
 
     
     
         5 . The protective clothing according to any of  claims 1  to  4 , wherein an adhesive to adhere the fiber layer and the electret nonwoven fabric layer of the dust-proof material is a hot-melt adhesive. 
     
     
         6 . The protective clothing according to  claim 5 , wherein the amount of the hot-melt adhesive to adhere the fiber layer and the electret nonwoven fabric layer is 0.5 g/m 2  or more and 3.0 g/m 2  or less. 
     
     
         7 . The protective clothing according to any of  claims 1  to  6 , having a thread sewing portion.

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